This project demonstrates how to use a buzzer module with an Arduino Nano to produce sound or generate alerts. Buzzer modules can be either active or passive, each requiring different driving methods.

Tiny RTC DS1307 module . White LED strip, 5 m . Hardware Setup . The hardware setup is pretty straightforward. The Arduino Uno is powered by an external DC supply (12 V) through its DC input socket ...

arduino alarm system 2 Articles . ... In essence, you connect a common 433 MHz receiver module to an ESP32 or ESP8266 microcontroller, and have it wait until a specific device squawks out.

It generates buzzer alarm when set counts or time duration is reached. Circuit Description. The Circuit diagram of smart whistle counter is shown in figure-1, It is based on Arduino Mega 2560 board.

This shield includes connections to an alarm system, a GSM modem, temperature and humidity sensors, an Ethernet module, and IR movement sensors. This Arduino Mega attaches to a control box mounted ...